摘　要: 为缩短数字视频广播卫星标准( DVB-S ) 接收系统中内码信息的估计时间, 提出了两套解决方案. 方案一:

根据维持比译码过程中, 从当前时刻回溯到译码深度以前时刻的各条幸存路径基本重合的原理进行判定 方案二:

利用“二次编码”的特性, 对译码数据进行再编码, 并采用置信度结合有限状态机构成的判定机制, 加快了估计.-Abstract: In order to reduce the Digital Video Broadcast Satellite standard (DVB-S) reception system in the estimated time-code information within the proposed two solutions. Option One: According to maintain than the decoding process, from the current point back to the decoding depth time before all of the surviving paths to determine the basic principle of coincidence　Option Two: Using the " second code"　of the characteristics of the re-encoding data decoding and confidence combined with limited use of state institutions as to determine a mechanism to speed up the estimation .